96 entries under prolong topic. ×

13
support(noun, verb, hold, keep, maintain)
12
carry on(verb, expression, phrasal verb, support, take)
12
sustain(verb, support, hold, help, advance)
11
continue(verb, support, take, advance, keep)
11
maintain(verb, support, hold, take, help)
11
preserve(verb, support, control, keep, maintain)
10
uphold(verb, support, hold, help, advance)
8
persevere(verb, control, advance, keep, maintain)
8
persist(verb, advance, maintain, continue, stay)
7
go on(verb, expression, phrasal verb, advance, maintain)
7
keep on(verb, expression, advance, maintain, continue)
6
endure(verb, take, advance, maintain, continue)
6
extend(verb, advance, maintain, continue, stay)
6
stay(verb, hold, help, advance, maintain)
5
keep at(verb, expression, advance, maintain, continue)
5
last(verb, advance, maintain, continue, stay)
4
keep going(verb, expression, support, control, advance)
4
lengthen(verb, advance, maintain, continue, stay)
4
protract(verb, support, keep, maintain, continue)
4
save(verb, support, keep, maintain, continue)
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APASmart Define. (2015). keep up thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/keep_up/thesaurus/synonyms
ChicagoSmart Define. 2015. "keep up thesaurus" https://smartdefine.org/keep_up/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, keep up thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/keep_up/thesaurus/synonyms>.
MLASmart Define. "keep up thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/keep_up/thesaurus/synonyms>